Pelteobagrus fulvidraco feeding pattern with different protein contents under various temperature and dissolved oxygen

Abstract

The invention discloses a pelteobagrus fulvidraco feeding pattern with different protein contents under various temperature and dissolved oxygen, and relates to a pelteobagrus fulvidraco feeding pattern in aquaculture. The feeding pattern is to monitor the water temperature and dissolved oxygen in the pond every day, when the mean water temperature TA and the mean dissolved oxygen DOA meet 23 DEGC<=TA<= 30 DEG C, and DOA >= 4mg / L, high protein content feed is fed, and low protein content feed is fed for the rest conditions; the protein content of the high protein content feed is 42% and the protein content of low protein content feed is 38%, both of them are palatable puffing feed. The pelteobagrus fulvidraco feeding pattern with different protein contents under various temperature and dissolved oxygen has extensive experimental basis and scientific basis to meet the nutritional requirements of the growth of pelteobagrus fulvidraco, and can reduce the cost of aquaculture effectively and reduce the waste of feed, and improve the economic benefit of aquaculture and effectively reduce the nitrogen emission in aquaculture water; the operation method is simple and clear, and has the prospect of demonstration and easy promotion.

Description

technical field

[0001] The invention relates to a feeding mode for yellow catfish cultivation in the field of aquaculture, in particular to a feeding mode for adjusting the temperature and dissolved oxygen of the yellow catfish to adjust feeds with different protein contents. Background technique

[0002] Pelteobagrus fulvidraco (Richardson), belonging to the order Silurformes, the family Bagride, and the genus Pelteobagrus, is endemic to East Asia and is a carnivorous bottom-dwelling fish commonly found in rivers and lakes in my country , its tender meat, delicious taste, and no intermuscular thorns have won the favor of consumers. In recent years, yellow catfish has been developed into a famous and high-quality freshwater aquaculture species with high economic value, and large-scale artificial breeding has been carried out in many parts of the country.

[0003] However, its typical high-density, high feed rate, and high water exchange rate farming methods often result in l...

Examples

Embodiment 1

[0025] Embodiment 1 selects wherein 40 days in the whole breeding cycle of the experimental pond of the present invention, introduces in detail every day temperature, dissolved oxygen change and feed throwing and feeding situation (table 1), provides demonstration for popularization and application of the present invention. From September 11, 2017 to October 20, 2017, in Lingqiao Township, Huaiyin District, Huai'an, Jiangsu Province, during this period, the water temperature showed a gradual downward trend, and the dissolved oxygen changed frequently. Select No. 1 experimental pond (7 mu, east-west direction, 90 meters long, wide 52 meters, water depth 2 meters) and contrast pond (7 mus, east-west direction, long 90 meters, wide 52 meters, water depth 2 meters). During the breeding period, real-time monitoring of pond water temperature and dissolved oxygen was carried out to the experimental pond every day. When the average water temperature of the pond was T A (the average wa...

Embodiment 2

[0030] On June 7, 2016, in Liuhe Town, Taicang City, Suzhou, Jiangsu Province, a 10-mu pond (east-west direction, length 110m, width 60m) and a water depth of 2 meters was selected as the experimental pond, numbered No. 2, and another 10-mu pond was selected. (east-west direction, length 95m, wide 70m), the pond of 2 meters of depth of water is as contrasting pond; After the normal clearing pond, all puts in a suitable place to breed 15000 end / mu of yellow catfish summer flowers; During breeding, carry out real-time monitoring pond water temperature and Dissolved oxygen, when the pond's average water temperature T A (the average water temperature from the last feeding to this time) and the average dissolved oxygen DO A (the average dissolved oxygen from the last feeding to this feeding) satisfying 23℃≤T A ≤30℃, and DO A When ≥4mg / L, the feed with protein content of 42% was fed, and the rest were fed with feed with protein content of 38%; the control pond was always fed with ...

Embodiment 3

[0032]On June 12, 2017, in Lingqiao Township, Huaiyin District, Huai'an, Jiangsu, a 10-mu (east-west, length 110m, width 60m) pond was selected as the experimental pond, numbered No. 3, and another 10-mu (east-west, length 95m, wide 70m) pond as the control pond, the water depth is 2 meters; after the normal clearing of the pond, 18000 summer flowers of yellow catfish / mu were stocked in the two ponds at the same time. During the breeding period, the pond water temperature and dissolved oxygen were monitored in real time every day. Pond average water temperature T A (the average water temperature from the last feeding to this time) and the average dissolved oxygen DO A (the average dissolved oxygen from the last feeding to this feeding) satisfying 23℃≤T A ≤30℃, and DO A When ≥4mg / L, the feed with protein content of 42% was fed, and the rest were fed with feed with protein content of 38%; the control pond was always fed with 42% high-protein feed; Large selection of palatable...

technical field

[0001] The invention relates to a feeding mode for yellow catfish cultivation in the field of aquaculture, in particular to a feeding mode for adjusting the temperature and dissolved oxygen of the yellow catfish to adjust feeds with different protein contents. Background technique

[0002] Pelteobagrus fulvidraco (Richardson), belonging to the order Silurformes, the family Bagride, and the genus Pelteobagrus, is endemic to East Asia and is a carnivorous bottom-dwelling fish commonly found in rivers and lakes in my country , its tender meat, delicious taste, and no intermuscular thorns have won the favor of consumers. In recent years, yellow catfish has been developed into a famous and high-quality freshwater aquaculture species with high economic value, and large-scale artificial breeding has been carried out in many parts of the country.

[0003] However, its typical high-density, high feed rate, and high water exchange rate farming methods often result in l...

Examples

Embodiment 1

[0025] Embodiment 1 selects wherein 40 days in the whole breeding cycle of the experimental pond of the present invention, introduces in detail every day temperature, dissolved oxygen change and feed throwing and feeding situation (table 1), provides demonstration for popularization and application of the present invention. From September 11, 2017 to October 20, 2017, in Lingqiao Township, Huaiyin District, Huai'an, Jiangsu Province, during this period, the water temperature showed a gradual downward trend, and the dissolved oxygen changed frequently. Select No. 1 experimental pond (7 mu, east-west direction, 90 meters long, wide 52 meters, water depth 2 meters) and contrast pond (7 mus, east-west direction, long 90 meters, wide 52 meters, water depth 2 meters). During the breeding period, real-time monitoring of pond water temperature and dissolved oxygen was carried out to the experimental pond every day. When the average water temperature of the pond was T A (the average wa...

Embodiment 2

[0030] On June 7, 2016, in Liuhe Town, Taicang City, Suzhou, Jiangsu Province, a 10-mu pond (east-west direction, length 110m, width 60m) and a water depth of 2 meters was selected as the experimental pond, numbered No. 2, and another 10-mu pond was selected. (east-west direction, length 95m, wide 70m), the pond of 2 meters of depth of water is as contrasting pond; After the normal clearing pond, all puts in a suitable place to breed 15000 end / mu of yellow catfish summer flowers; During breeding, carry out real-time monitoring pond water temperature and Dissolved oxygen, when the pond's average water temperature T A (the average water temperature from the last feeding to this time) and the average dissolved oxygen DO A (the average dissolved oxygen from the last feeding to this feeding) satisfying 23℃≤T A ≤30℃, and DO A When ≥4mg / L, the feed with protein content of 42% was fed, and the rest were fed with feed with protein content of 38%; the control pond was always fed with ...

Embodiment 3

[0032]On June 12, 2017, in Lingqiao Township, Huaiyin District, Huai'an, Jiangsu, a 10-mu (east-west, length 110m, width 60m) pond was selected as the experimental pond, numbered No. 3, and another 10-mu (east-west, length 95m, wide 70m) pond as the control pond, the water depth is 2 meters; after the normal clearing of the pond, 18000 summer flowers of yellow catfish / mu were stocked in the two ponds at the same time. During the breeding period, the pond water temperature and dissolved oxygen were monitored in real time every day. Pond average water temperature T A (the average water temperature from the last feeding to this time) and the average dissolved oxygen DO A (the average dissolved oxygen from the last feeding to this feeding) satisfying 23℃≤T A ≤30℃, and DO A When ≥4mg / L, the feed with protein content of 42% was fed, and the rest were fed with feed with protein content of 38%; the control pond was always fed with 42% high-protein feed; Large selection of palatable...

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